© 2006 Wabash MPI
Glossary of Terms Q-RGlossary Terms used in the Compression and Transfer Molding ProcessA-B • C-D • E-F • G-H • I-J • K-L • M-N • O-P • Q-R • S-T • U-V • W-XRECLAIM OR RECLAIM RUBBER:The product resulting from the treatment of scrap vulcanized rubber in various operations. It is generally used as an extender or processing aid in natural rubber and SBR compounds , rather than by itself. RESERVOIR:A tank mounted on the machine to hold hydraulic oil or heating/cooling fluid. REVERSION:A deterioration of physical properties that may occur upon excessive vulcanization of some elastomer, evidenced by a decrease in hardness and tensile strength, and an increase in elongation. RHEOMETER:A laboratory instrument that evaluates the cure characteristics of a polymer formulation by twisting a disc against a rubber sample for a time while the sample is being heated and cured. The change in torque over time to twist the disc is measured. RUBBER:Polymer that has high degree of reverse extensibility and generally low strength. Can often be stretched 400 to 500 times its original dimension without breaking. LIQUID INJECTION MOLDING:A process for forming objects, as of plastic, rubber or metal, by heating the molding material to a fluid state and injecting it at high pressure into a mold, which is the inverse of the desired shape. RUNNER:Material connecting the main sprue to the actual part cavities. Compression Molding Presses | Vacuum Molding Presses | Transfer Molding Presses Wabash MPI |